Bearing structure capable of bearing high load

Abstract

The utility model relates to the technical field of bearing manufacturing, particularly discloses a bearing structure capable of bearing high load, and solves the problems that in the process that a cylindrical roller of an existing bearing is installed in a protection frame, the cylindrical roller can incline in the protection frame, uneven load or unnecessary friction can be caused by the installation deviation, and the service life of the bearing is prolonged. The device comprises a lower protection frame, a storage hole and a directional groove are formed in the lower protection frame, the storage hole communicates with the directional groove, a limiting rod is arranged in the storage hole, an ejection assembly is arranged below the lower protection frame, and a first ejection column and a second ejection column are used for jointly pushing the limiting rod; and the limiting rods extend out of the containing holes, the extending-out limiting rods can limit the cylindrical rollers, it is guaranteed that the central axes of the cylindrical rollers installed in the protection frame are parallel to the central axis of the bearing, and uneven loads caused by installation deviation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing manufacturing, in particular to a bearing structure capable of bearing high loads. Background Art

[0002] Cylindrical roller bearings have a higher load capacity than other bearing types (such as ball bearings) due to the line contact of the rollers, rather than point contact, which allows the bearings to share a larger radial load. Cylindrical roller bearings have good rigidity in the radial direction and can resist axial deformation due to load and deformation, which makes them superior in applications that support high loads and require high rigidity.

[0003] However, existing cylindrical roller bearings that can withstand high loads cannot ensure that the center axis of the cylindrical roller is parallel to the center axis of the bearing when the cylindrical roller is installed inside the protective cage. The cylindrical roller will tilt inside the protective cage. This deviation will cause uneven load or unnecessary friction, affecting the service life of the bearing. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a bearing structure that can withstand high loads and can solve the problem that, when the cylindrical roller of the existing bearing is installed inside a protective frame, the cylindrical roller will tilt inside the protective frame. Such installation deviation will cause uneven load or unnecessary friction, thus affecting the service life of the bearing. The utility model can ensure that the axis of the cylindrical roller installed inside the protective frame is parallel to the center axis of the bearing, thus preventing the cylindrical roller from tilting inside the protective frame. At the same time, the lubricant can be effectively stored, thus helping to reduce friction and extend the service life of the bearing.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solutions: a bearing structure capable of bearing high loads, comprising a lower protective frame, a receiving hole and an orientation slot are provided inside the lower protective frame, the receiving hole and the orientation slot are connected to each other, a limit rod is provided inside the receiving hole, and an ejection assembly is provided below the lower protective frame;

[0008] The ejection assembly comprises a sealing ring, one side of which is fixedly connected with a first ejector column and a second ejector column, and a material storage trough is provided inside the first ejector column and the second ejector column.

[0009] Through the above technical solution, when the cylindrical roller is installed inside the protective frame, the first top column and the second top column are used to push out the limit rod inside the storage hole. The cylindrical roller can be limited by the limit rod to ensure that the axis of the cylindrical roller installed inside the protective frame is parallel to the center axis of the bearing.

[0010] Furthermore, an upper protective frame is arranged above the lower protective frame, inner rings are arranged inside the upper and lower protective frames, outer rings are arranged outside the upper and lower protective frames, and a sealing ring is connected to one side of the outer ring.

[0011] Through the above technical solution, the upper protection frame and the lower protection frame jointly limit the cylindrical rollers to prevent the cylindrical rollers from colliding with each other during rotation. The split protection frame setting is helpful for inspecting and repairing the internal components of the bearing.

[0012] Furthermore, a docking block is fixedly connected to the upper surface of the lower protective frame, a limiting groove is provided on the upper surface of the lower protective frame, a limiting groove is provided on the lower surface of the upper protective frame, a cylindrical roller is arranged inside the limiting groove, a docking groove is provided on the lower surface of the upper protective frame, the docking block is connected to the docking groove, a plurality of docking grooves and docking blocks are provided, and the docking grooves and docking blocks are respectively distributed in a centrally symmetrical manner with respect to the center of the upper protective frame and the lower protective frame.

[0013] Through the above technical solution, the snap-fit ​​connection between the docking block and the docking groove helps to quickly connect the upper protection frame and the lower protection frame, thereby improving the convenience of installing the upper protection frame and the lower protection frame.

[0014] Furthermore, the limit rods are respectively located on the outside of the cylindrical rollers, one cylindrical roller corresponds to four limit rods, the height of the limit rod is equal to the height of the storage hole, and the connection between the limit rod and the storage hole is a sliding connection.

[0015] Through the above technical solution, after the limit rod extends from the inside of the storage hole, the four limit rods are distributed together on the outside of the cylindrical roller. When the cylindrical roller is placed inside the limit groove, the four limit rods will limit the cylindrical roller to ensure that the cylindrical roller is placed vertically inside the limit groove, thereby preventing the cylindrical roller from tilting inside the limit groove, and the limit rod can be stored inside the storage hole, thereby preventing the limit rod from affecting the operation of the bearing.

[0016] Furthermore, the first top column corresponds one-to-one to the receiving hole on the inner side of the lower protective frame, and the second top column corresponds one-to-one to the receiving hole on the inner side of the lower protective frame.

[0017] Through the above technical solution, the first top column and the second top column jointly push the limiting rod inside the storage hole, so that the limiting rod extends from the storage hole and performs limiting work, which facilitates the position of the limiting rod to be adjusted by the first top column and the second top column.

[0018] Furthermore, the height of the first top column and the second top column is smaller than the vertical distance from the lower protection frame to the sealing ring, and the depth of the material storage trough is smaller than the height of the first top column and the second top column.

[0019] Through the above technical solution, a certain amount of lubricant can be stored inside the storage tank. When the lubricant adhering to the cylindrical roller and the protective frame is consumed, the lubricant stored in the storage tank can accurately fall onto the cylindrical roller and the protective frame, thereby reducing friction and extending the service life of the bearing.

[0020] Furthermore, a rubber block is fixedly connected to one end of the second top column, a connecting hole is opened on the lower surface of the outer ring, the rubber block is connected to the connecting hole by snap-fit ​​connection, and the diameter of the rubber block is greater than the diameter of the second top column.

[0021] Through the above technical solution, the snap connection between the rubber block and the connecting hole can prevent the sealing ring and the outer ring from falling off, thereby improving the sealing effect of the sealing ring on the bearing.

[0022] Compared with the prior art, the utility model provides a bearing structure capable of bearing high loads, and has the following beneficial effects:

[0023] In the utility model, the first top column and the second top column are used to jointly push the limit rod, so that the limit rod is extended from the inside of the storage hole. The extended limit rod can limit the cylindrical roller, ensuring that the axis of the cylindrical roller installed in the protection frame is parallel to the center axis of the bearing, avoiding uneven load or unnecessary friction caused by installation deviation, and a certain amount of lubricant can be stored in the storage trough. When the lubricant adhered to the cylindrical roller and the protection frame is consumed, the lubricant stored in the storage trough can accurately fall onto the cylindrical roller and the protection frame, thereby reducing friction and extending the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the connection structure between the upper protection frame and the lower protection frame in the utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the cylindrical roller and the lower protection frame of the utility model;

[0027] Figure 4 For the utility model Figure 3The enlarged structural diagram at A in the middle;

[0028] Figure 5 It is a schematic diagram of the top view of the structure of the middle and lower protection frame of the utility model;

[0029] Figure 6 For the utility model Figure 5 The enlarged structural diagram at B in the middle;

[0030] Figure 7 This is a schematic diagram of the structure of the upper protection frame in the utility model when viewed from above;

[0031] Figure 8 This is a schematic diagram of the connection structure between the outer ring and the sealing ring in the utility model;

[0032] Fig. 9 It is a schematic diagram of the structure of the outer ring in the utility model.

[0033] Among them: 1. Inner ring; 2. Cylindrical roller; 3. Upper protection frame; 4. Limiting groove; 5. Docking groove; 6. Lower protection frame; 7. Docking block; 8. Storage hole; 9. Orienting groove; 10. Limiting rod; 11. Outer ring; 12. Connecting hole; 13. Sealing ring; 14. First top column; 15. Second top column; 16. Rubber block; 17. Storage trough. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 3-Figure 6 The utility model provides a technical solution: a bearing structure capable of bearing high loads, comprising a lower protective frame 6, a receiving hole 8 and an orientation slot 9 are provided inside the lower protective frame 6, the receiving hole 8 and the orientation slot 9 are connected to each other, a limiting rod 10 is provided inside the receiving hole 8, and an ejection assembly is provided below the lower protective frame 6;

[0036] See also Figure 2 and Figure 8 The ejection assembly includes a sealing ring 13 , a first ejector column 14 and a second ejector column 15 are fixedly connected to one side of the sealing ring 13 , and a material storage trough 17 is provided inside the first ejector column 14 and the second ejector column 15 .

[0037] The principle of limiting the installation of the cylindrical roller 2 is as follows: the first top column 14 and the second top column 15 connected to one side of the sealing ring 13 correspond one to one with the storage hole 8 opened inside the lower protective frame 6, and the first top column 14 and the second top column 15 jointly push the limiting rod 10 inside the storage hole 8, so that the limiting rod 10 extends from the inside of the storage hole 8. When the cylindrical roller 2 is placed inside the limiting groove 4, the limiting rod 10 can limit the cylindrical roller 2 to prevent the cylindrical roller 2 from tilting inside the limiting groove 4, thereby ensuring that the axis of the cylindrical roller 2 installed inside the protective frame is parallel to the center axis of the bearing.

[0038] See also Figure 1-Figure 7 An upper protective frame 3 is arranged above the lower protective frame 6, an inner ring 1 is arranged on the inner side of the upper protective frame 3 and the lower protective frame 6, an outer ring 11 is arranged on the outer side of the upper protective frame 3 and the lower protective frame 6, a sealing ring 13 is connected to one side of the outer ring 11, a docking block 7 is fixedly connected to the upper surface of the lower protective frame 6, a limiting groove 4 is provided on the upper surface of the lower protective frame 6, a limiting groove 4 is provided on the lower surface of the upper protective frame 3, a cylindrical roller 2 is provided inside the limiting groove 4, a docking groove 5 is provided on the lower surface of the upper protective frame 3, the docking block 7 is connected to the docking groove 5, a plurality of docking grooves 5 and docking blocks 7 are provided, and the docking grooves 5 and docking blocks 7 are respectively symmetrically distributed about the center of the upper protective frame 3 and the lower protective frame 6.

[0039] It should be noted that the snap connection between the docking block 7 and the docking groove 5 helps to quickly connect the upper protection frame 3 and the lower protection frame 6, thereby improving the convenience of installing the upper protection frame 3 and the lower protection frame 6.

[0040] See also Figure 2-Figure 4 and Figure 8 The limit rods 10 are respectively located on the outside of the cylindrical rollers 2, one cylindrical roller 2 corresponds to four limit rods 10, the height of the limit rod 10 is equal to the height of the storage hole 8, the connection method between the limit rod 10 and the storage hole 8 is a sliding connection, the first top column 14 corresponds one-to-one to the storage hole 8 on the inner side of the lower protective frame 6, and the second top column 15 corresponds one-to-one to the storage hole 8 on the inner side of the lower protective frame 6.

[0041] The function of the storage hole 8 is that the limit rod 10 can slide inside the storage hole 8, and after the limit rod 10 extends from the storage hole 8, it can limit the cylindrical roller 2, and the limit rod 10 can be stored inside the storage hole 8, thereby avoiding the limit rod 10 from affecting the operation of the bearing.

[0042] See also Figure 2-Figure 4 and Figure 8 The height of the first top column 14 and the second top column 15 is less than the vertical distance from the lower protection frame 6 to the sealing ring 13 , and the depth of the storage trough 17 is less than the height of the first top column 14 and the second top column 15 .

[0043] The principle of reducing the internal friction of the bearing is: the storage tank 17 opened inside the first top column 14 and the second top column 15 can store a certain amount of lubricant. When the lubricant adhering to the cylindrical roller 2 and the protective frame is consumed, the lubricant stored in the storage tank 17 can accurately fall onto the cylindrical roller 2 and the protective frame, thereby reducing the internal friction of the bearing and extending the service life of the bearing.

[0044] See also Figure 8-Figure 9 A rubber block 16 is fixedly connected to one end of the second top column 15 , a connecting hole 12 is opened on the lower surface of the outer ring 11 , and the rubber block 16 is connected to the connecting hole 12 by a snap-fit ​​connection. The diameter of the rubber block 16 is larger than the diameter of the second top column 15 .

[0045] It is worth mentioning that after the rubber block 16 is inserted into the connecting hole 12 , the friction between the sealing ring 13 and the outer ring 11 can be increased, thereby preventing the sealing ring 13 and the outer ring 11 from falling off, which is beneficial to improving the sealing effect of the sealing ring 13 on the bearing.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing structure capable of withstanding high loads, comprising a lower protection frame (6), characterized in that: A receiving hole (8) and an orientation groove (9) are provided inside the lower protection frame (6), the receiving hole (8) and the orientation groove (9) are communicated with each other, a limiting rod (10) is provided inside the receiving hole (8), and an ejection assembly is provided below the lower protection frame (6); The ejection assembly comprises a sealing ring (13), one side of which is fixedly connected to a first ejection column (14) and a second ejection column (15), and a material storage trough (17) is provided inside the first ejection column (14) and the second ejection column (15).

2. A bearing structure capable of withstanding high loads according to claim 1, characterized in that: An upper protective frame (3) is arranged above the lower protective frame (6); an inner ring (1) is arranged on the inner sides of the upper protective frame (3) and the lower protective frame (6); an outer ring (11) is arranged on the outer sides of the upper protective frame (3) and the lower protective frame (6); and a sealing ring (13) is connected to one side of the outer ring (11).

3. A bearing structure capable of withstanding high loads according to claim 2, characterized in that: The upper surface of the lower protection frame (6) is fixedly connected with a docking block (7); the upper surface of the lower protection frame (6) is provided with a limiting groove (4); the lower surface of the upper protection frame (3) is provided with a limiting groove (4); a cylindrical roller (2) is arranged inside the limiting groove (4); the lower surface of the upper protection frame (3) is provided with a docking groove (5); the docking block (7) and the docking groove (5) are connected to each other; a plurality of docking grooves (5) and docking blocks (7) are provided; and the docking grooves (5) and docking blocks (7) are respectively distributed in a centrally symmetrical manner with respect to the center of the upper protection frame (3) and the lower protection frame (6).

4. A bearing structure capable of withstanding high loads according to claim 2, characterized in that: The limiting rods (10) are respectively located on the outside of the cylindrical rollers (2); one cylindrical roller (2) corresponds to four limiting rods (10); the height of the limiting rod (10) is equal to the height of the receiving hole (8); and the limiting rod (10) and the receiving hole (8) are connected in a sliding manner.

5. A bearing structure capable of withstanding high loads according to claim 4, characterized in that: The first top column (14) corresponds one-to-one to the receiving hole (8) on the inner side of the lower protective frame (6), and the second top column (15) corresponds one-to-one to the receiving hole (8) on the inner side of the lower protective frame (6).

6. A bearing structure capable of withstanding high loads according to claim 5, characterized in that: The height of the first top column (14) and the second top column (15) is less than the vertical distance from the lower protection frame (6) to the sealing ring (13), and the depth of the material storage trough (17) is less than the height of the first top column (14) and the second top column (15).

7. A bearing structure capable of withstanding high loads according to claim 6, characterized in that: A rubber block (16) is fixedly connected to one end of the second top column (15); a connecting hole (12) is provided on the lower surface of the outer ring (11); the rubber block (16) and the connecting hole (12) are connected by snap-fit ​​connection; and the diameter of the rubber block (16) is greater than the diameter of the second top column (15).

Images